<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>三角强化</title>
    <style>
        *{
            margin: 0;
            padding: 0;
        }
        .Triangle-reinforance{
            width: 0;
            height: 0;
            border-top: 100px solid transparent;
            border-bottom: 0 solid red;
            border-left: 0 solid green;
            border-right: 50px solid indianred;
        }
        .price{
            line-height: 50px;
            width: 200px;
            height: 50px;
            border: 2px solid red;
            margin: 0 auto;
            text-align: center;
        }
        .miaosha{
            position: relative;
            float: left;
            width: 110px;
            height: 100%;
            background-color: red;
        }
        .miaosha i{
            right: 0;
            position: absolute;
            width: 0;
            height: 0;
            border-top: 50px solid transparent;
            border-bottom: 0 solid transparent;
            border-left: 0 solid transparent;
            border-right: 25px solid white;
        }
    </style>
</head>
<body>
<div class="Triangle-reinforance"></div>
<div class="price">
    <span class="miaosha">$1650
    <i></i>
    </span>
    <span>$5650</span>
</div>
</body>
</html>